DRINKING WATER

The Broader Value Proposition: Adopting Smart Meters Ahead Of New Construction
The Broader Value Proposition: Adopting Smart Meters Ahead Of New Construction

Smart water meters as part of larger advanced metering infrastructure provide substantial benefits for water utilities with established distribution systems. Few water managers, however, consider their impact on new construction when building a business case to stakeholders to implement the technology. Areas experiencing population growth will realize additional benefits that will help win support to invest sooner rather than later.

DRINKING WATER CASE STUDIES AND WHITE PAPERS

  • The Science Of Mixing And Improving Water Quality In Water Storage Tanks
    The Science Of Mixing And Improving Water Quality In Water Storage Tanks

    Water storage tanks and reservoirs are a critical component of distribution systems, yet they can pose a significant challenge for water utilities as they often have a negative impact on water quality. Water quality problems can develop due to low turnover and/or inadequate mixing resulting in short-circuiting. While the benefits of maximizing tank turnover to minimize water age are generally understood, it is only recently that extensive research on mixing characteristics of storage tanks has been undertaken that has provided insight on what causes water quality problems and expertise in designing inlet/outlet pipe configurations, or mixing systems, to achieve complete mixing and maintain water quality.

  • Sniffing For Leaks: Gas Leak Detection Saves A Colorado Utility Thousands
    Sniffing For Leaks: Gas Leak Detection Saves A Colorado Utility Thousands

    A small water district in Breckenridge, CO, was experiencing notably high water loss from November of 2015 through April of 2016. The apparent discrepancies in usage versus production led the utility to seek out the source(s) of the water loss.

  • PFAS Contamination Continues To Be An Issue Of Concern

    A couple of weeks ago, Environmental Protection Agency (EPA) administrator Scott Pruitt called PFAS groundwater contamination “a national priority” and pledged action at an EPA national PFAS leadership summit.

  • Myth Vs Truth: “If My Disinfectant Residual Is Always High Enough, I Don’t Have To Worry About Microbes"
    Myth Vs Truth: “If My Disinfectant Residual Is Always High Enough, I Don’t Have To Worry About Microbes"

    Monitoring of disinfectant residuals ensures that sufficient protection is maintained at all points in the distribution system. The absence of a disinfectant residual means that suppression of microbiological growth is much more difficult and the rate of regrowth can be significantly accelerated. But does maintaining an adequate disinfectant residual provide enough protection?

  • Understanding ISE Measurements In Wastewater Process Monitoring
    Understanding ISE Measurements In Wastewater Process Monitoring

    Analytic measuring technique provides a huge number of procedures to determine the concentrations of substances in an unknown sample, e.g. photometry, titration or mass spectrometry.

  • City Of Springfield, MO, Upgrades Disinfection System From Gas Chlorine To On‐Site Sodium Hypochlorite Generation
    City Of Springfield, MO, Upgrades Disinfection System From Gas Chlorine To On‐Site Sodium Hypochlorite Generation

    In April 2013, City Utilities started up three Microclor Model MC‐1500 skid systems, each rated at 1,500 pounds per day of free available chlorine.

  • AMI And The Zen Of Water Utility Management
    AMI And The Zen Of Water Utility Management

    Drinking water utilities have a lot on their plates. Aside from the inherent technical difficulty of providing a vital service, they have to maintain positive customer relations, contend with increasingly strained budgets, and run operations with as little stress to employees as possible.

  • Stainless Steel Mechanical Joint Repair Sleeve For Saltwater Application
    Stainless Steel Mechanical Joint Repair Sleeve For Saltwater Application

    A 24” HDPE pipeline providing water to Sullivan’s Island was installed and submerged under the channel. After installation and put into service, a fused joint failed. A temporary repair, using available products located at local warehouse, to keep customers in service was completed. The local public utility needed a permanent, pressure repair solution to be installed, by dive technicians underwater, without disruption to service to island. Read the full case study to learn more.

  • Using Membrane Contactor Technology To Extend Resin Bed Life
    Using Membrane Contactor Technology To Extend Resin Bed Life

    In today’s economic environment when profits are reduced due to rising costs, it is necessary to find ways to save time and money.

  • Encore® 700 Chemical Feed Pumps Provide Reliable Service Over 20 Years In Santa Barbara, California
    Encore® 700 Chemical Feed Pumps Provide Reliable Service Over 20 Years In Santa Barbara, California

    The 37 million gallon per day William B. Cater Water Treatment plant serves City of Santa Barbara with the majority of its drinking water while also supplying treated water to the districts of Montecito Water, Carpinteria Valley Water, Goleta Water, and La Cumbre Water.

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DRINKING WATER APPLICATION NOTES

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DRINKING WATER PRODUCTS

RTP Tanks Repair Services RTP Tanks Repair Services

Plas-Tanks Industries offers the following services for fiberglass reinforced plastic (FRP) tanks

The Mass Appeal Of Siemens Coriolis Mass Flow Meters The Mass Appeal Of Siemens Coriolis Mass Flow Meters

Coriolis mass flow meter systems, sensors, and transmitters utilize the latest technology for high performance.

Recordall® Compound Series Meters Recordall® Compound Series Meters

Recordall Compound Series Meters from Badger Meter combine two metering technologies in one innovative package. A positive displacement chamber measures low flow, while a turbine chamber records high flow. These meters are an ideal choice for facilities that experience rapid and wide fluctuations in water demand, such as hospitals, universities, residential complexes and manufacturing or processing facilities.

Membray MBR Membrane Membray MBR Membrane

Toray's Membrane Bioreactor (MBR) process is a combination of biological wastewater treatment and membrane filtration.

Hydrant Pressure Impulse Recorder Hydrant Pressure Impulse Recorder

The simplicity of the compact, battery-powered Telog HPR-31 enables you to put it to work within minutes of unpacking. Once installed, the Telog HPR-31 measures water pressure at user programmable rates up to four samples per second with its internal pressure transducer. You can determine how often such data is summarized for reporting. The recorder computes any combination of minimum, average and maximum pressure measurement at each interval according to your selection of statistics and recording intervals. Recorded data may be gathered via an RS-232 connector using a laptop.

Spectroquant® Prove Spectrophotometer Spectroquant® Prove Spectrophotometer

Simplify water analysis with a new class of spectrophotometers.

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LATEST INSIGHTS ON DRINKING WATER

  • EPA Claims To Support 'Clean And Safe Water,' Cuts $1.4 Billion From Water Protection
    EPA Claims To Support 'Clean And Safe Water,' Cuts $1.4 Billion From Water Protection

    Americans should feel confident that the water delivered to their homes by a public water system is safe to drink. But when residents of Martin County, Kentucky turn on their taps, the water may be discolored, smell like bleach, and make children itch after bathing.

  • Two Nations, One Water: U.S.-Mexico Experts Work Together For Water
    Two Nations, One Water: U.S.-Mexico Experts Work Together For Water

    Though the elephant in the room (Texas v. New Mexico court case) loomed large, hundreds of water researchers and experts who converged for the second annual Two Nations One Water summit in Las Cruces, NM, quickly went to work to explore water strategies for managing shared water resources amidst drought, climate uncertainties, and population growth.

  • Growing And Flourishing In A Desert
    Growing And Flourishing In A Desert

    Water is essential to life. And it is a very precious commodity in Israel, home to 9 million people living in a rocky desert that receives about 10 inches of rain a year. By comparison, Denver, considered semi-arid, gets about 15 inches of rain a year, which is about a fourth of the precipitation a tropical city such as Miami receives.

  • From Emerging To Emerged: What These 'Here Now' Contaminants Mean For The Water Sector
    From Emerging To Emerged: What These 'Here Now' Contaminants Mean For The Water Sector

    As PFAS and a host of other pollutants threaten water systems and erode public confidence, the water industry fights back with a comprehensive action plan.

  • A Fateful Decision: SCOTUS On The Scope Of Clean Water Act Jurisdiction
    A Fateful Decision: SCOTUS On The Scope Of Clean Water Act Jurisdiction

    The question of liability and oversight pertaining to the pollution of “navigable waters” via groundwater flow is on the docket for the Supreme Court — and on the minds of wastewater treatment operators.

  • Protecting Water Quality Has Positive Trickle-Down Effect
    Protecting Water Quality Has Positive Trickle-Down Effect

    They say we all live downstream from someone and upstream from someone else — a reminder, quite literal for the water industry, of our interconnectedness and responsibility to others. In New York, the Army Corps of Engineers proved how relatively small infrastructure improvements can have outsized impact.

More Drinking Water Features

DRINKING WATER VIDEOS

Tiny Motors That Can Clean Up Polluted Water

Scientists are developing new motors that are tiny and soft. They run on things like light, magnetic effects or chemical solutions. And they can serve specific functions — including cleaning up pollution.

Matt Damon's Mission To End World Poverty

In 2007 he was named People magazine's Sexiest Man Alive, but these days, Matt Damon is getting noticed for something far less sexy. During a trip to Africa in 2006, Damon made it his mission to help people in developing countries have access to safe water and sanitation. He talks to Katie Couric in "World 3.0".

Increase Filtration Capacity and Performance with the Forty-X™ Disc Filter Increase Filtration Capacity and Performance with the Forty-X™ Disc Filter

When treatment plants with sand filtration require increased filtration capacity or improved performance, the Forty-X™ Disc Filter is recommended.  This high-rate tertiary filter fits into a fraction of the footprint required by traditional sand filters.  It increases throughput, improves efficiency and minimizes lifecycle costs.  Each filter is backed by the experience & expertise of Evoqua product experts who can assist with making recommendations to meet specific operational requirements.

Freshwater Salinization Syndrome: An Introduction

Across North America, streams and rivers are becoming saltier, thanks to road deicers, fertilizers and other salty compounds that humans indirectly release into waterways. At the same time, freshwater supplies are becoming more alkaline.

Video: YSI Professional Plus Multiparameter Meter Video: YSI Professional Plus Multiparameter Meter
This video gives an overview of the features and benefits of the YSI Professional Plus, or Pro Plus, handheld multiparameter water quality instrument.
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ABOUT DRINKING WATER

In most developed countries, drinking water is regulated to ensure that it meets drinking water quality standards. In the U.S., the Environmental Protection Agency (EPA) administers these standards under the Safe Drinking Water Act (SDWA)

Drinking water considerations can be divided into three core areas of concern:

  1. Source water for a community’s drinking water supply
  2. Drinking water treatment of source water
  3. Distribution of treated drinking water to consumers

Drinking Water Sources

Source water access is imperative to human survival. Sources may include groundwater from aquifers, surface water from rivers and streams and seawater through a desalination process. Direct or indirect water reuse is also growing in popularity in communities with limited access to sources of traditional surface or groundwater. 

Source water scarcity is a growing concern as populations grow and move to warmer, less aqueous climates; climatic changes take place and industrial and agricultural processes compete with the public’s need for water. The scarcity of water supply and water conservation are major focuses of the American Water Works Association.

Drinking Water Treatment

Drinking Water Treatment involves the removal of pathogens and other contaminants from source water in order to make it safe for humans to consume. Treatment of public drinking water is mandated by the Environmental Protection Agency (EPA) in the U.S. Common examples of contaminants that need to be treated and removed from water before it is considered potable are microorganisms, disinfectants, disinfection byproducts, inorganic chemicals, organic chemicals and radionuclides.

There are a variety of technologies and processes that can be used for contaminant removal and the removal of pathogens to decontaminate or treat water in a drinking water treatment plant before the clean water is pumped into the water distribution system for consumption.

The first stage in treating drinking water is often called pretreatment and involves screens to remove large debris and objects from the water supply. Aeration can also be used in the pretreatment phase. By mixing air and water, unwanted gases and minerals are removed and the water improves in color, taste and odor.

The second stage in the drinking water treatment process involves coagulation and flocculation. A coagulating agent is added to the water which causes suspended particles to stick together into clumps of material called floc. In sedimentation basins, the heavier floc separates from the water supply and sinks to form sludge, allowing the less turbid water to continue through the process.

During the filtration stage, smaller particles not removed by flocculation are removed from the treated water by running the water through a series of filters. Filter media can include sand, granulated carbon or manufactured membranes. Filtration using reverse osmosis membranes is a critical component of removing salt particles where desalination is being used to treat brackish water or seawater into drinking water.

Following filtration, the water is disinfected to kill or disable any microbes or viruses that could make the consumer sick. The most traditional disinfection method for treating drinking water uses chlorine or chloramines. However, new drinking water disinfection methods are constantly coming to market. Two disinfection methods that have been gaining traction use ozone and ultra-violet (UV) light to disinfect the water supply.

Drinking Water Distribution

Drinking water distribution involves the management of flow of the treated water to the consumer. By some estimates, up to 30% of treated water fails to reach the consumer. This water, often called non-revenue water, escapes from the distribution system through leaks in pipelines and joints, and in extreme cases through water main breaks.

A public water authority manages drinking water distribution through a network of pipes, pumps and valves and monitors that flow using flow, level and pressure measurement sensors and equipment.

Water meters and metering systems such as automatic meter reading (AMR) and advanced metering infrastructure (AMI) allows a water utility to assess a consumer’s water use and charge them for the correct amount of water they have consumed.